154028490745 has 16 divisors (see below), whose sum is σ = 187210307088. Its totient is φ = 121645117440.

The previous prime is 154028490739. The next prime is 154028490779. The reversal of 154028490745 is 547094820451.

It can be written as a sum of positive squares in 8 ways, for example, as 15611752809 + 138416737936 = 124947^2 + 372044^2 .

It is not a de Polignac number, because 154028490745 - 2⁵ = 154028490713 is a prime.

It is a super-2 number, since 2×154028490745² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207436 + ... + 592525.

It is an arithmetic number, because the mean of its divisors is an integer number (11700644193).

Almost surely, 2^154028490745 is an apocalyptic number.

It is an amenable number.

154028490745 is a deficient number, since it is larger than the sum of its proper divisors (33181816343).

154028490745 is an equidigital number, since it uses as much as digits as its factorization.

154028490745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800460.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 154028490745 in words is "one hundred fifty-four billion, twenty-eight million, four hundred ninety thousand, seven hundred forty-five".